BUILDINGS 303 
times to considerable inconvenience. A narrow passage across 
the piggery at some point, and doors in the partitions between 
the pens, similar to those shown in Fig. 72, would make 
it very convenient for changing pigs from one pen to another, 
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Fie. 71.—Cross section of cement trough, showing arrangement of front of pen. 
especially when it is necessary to move them to a pen on the 
opposite side of the feed passage. 
The open shed for the breeding sows provides plenty of exer- 
cise, and if sufficient bedding is furnished, the sows will thrive 
much better than if kept closely confined. It has been noted 
